Sanken SVCO6, Инструкция по эксплуатации, Страница: 139 / 326

- 137 -
C
h
ap
ter
7
7-3 Description of Functions
●
The top value and the bottom value of a jump frequency can not be reversely set. Therefore, when setting the top
value or the bottom value, set the values in the correct order so that the top and bottom values are not reversed.
(Because in the initial settings, both the top and bottom values are specified as 0, setting the bottom value first will
cause an error, such setting is prohibited.)
●
When the upper frequency limit (F1007) or the lower frequency limit (F1008) is set within the jump frequency band,
the frequency will jump within the range of the upper frequency limit and lower frequency limit.
●
Setting a jump frequency band that includes both the upper frequency limit (F1007) or highest frequency and the
lower frequency limit (F1008) is prohibited for safety reasons.
F1307 Auto alarm recovery
This function code automatically specifies whether the inverter restarts after the inverter is tripped by protection function
due to overcurrent or overvoltage.
Code No. Function Name Data Content Setting
Resolution
Factory Presets
F1307 Auto alarm recovery 0: No auto reset function
1: Auto reset function
1 0
●
The inverter restarts in the flying start mode. And, the alarm relay does not work when the inverter is restarted.
●
If three consecutive trips occur in 10 seconds, the status of 3rd trip alarm will be kept, and the alarm relay works.
●
When an alarm for which auto reset is possible occurs during standby and then is released, the reset method depends
on the status at that time.
Standby: Keeps standby.
If operation conditions are established: Setting of starting frequency is inactivated by flying start.
●
When an alarm for which auto reset is possible occurs during deceleration caused by the stop signal and then is
released, auto reset is performed in the alarm stop status. But operation is not restarted.
●
Auto reset is possible with the following alarms:
Abnormal main switching device temperature
Overcurrent during acceleration
Overcurrent during constant speed
Overcurrent during deceleration
Short-time overload during acceleration
Short-time overload during constant speed
Short-time overload during deceleration
Overvoltage during acceleration
Overvoltage during constant speed
Overvoltage during deceleration
F1308 Instability elimination
When the inverter is used to drive a motor, the dead time to protect a switching device from a short circuit may make the
current unstable. If the current becomes unstable, the motor may generate vibration or abnormal noises. In addition,
compared with the stable current, the current value may become greater. The instability elimination function is used to
avoid this problem.
Code No. Function Name Data Content Setting
Resolution
Factory Presets
F1308 Instability elimination 0-20 1
※
※
The representative parameters that are suitable for various models have been input.
●
The larger the value specified, the greater the compensation. Therefore, increase the value gradually to set the value
at which instability is eliminated.